Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • Sonardyne International appoints Graham Brown as Managing Director

Defence Security

Sonardyne International appoints Graham Brown as Managing Director

Marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.

Above: Leading marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.
Courtesy Sonardyne International

Graham, who takes over the role from John Ramsden on 1st April, has served on Sonardyne International’s board from 2008, most recently as Sales and Marketing Director and Deputy Managing Director.

Advertisement
Tritax 300x250

John, who has been Sonardyne International’s Managing Director since 2009, is staying within the Sonardyne family, taking the role of CEO of Sonardyne Group, the newly formed parent company of Sonardyne International and its sister companies; Chelsea Technologies, EIVA, Wavefront and 2G Robotics.

“This is an exciting time for Sonardyne International,” says Graham. “Looking beyond the current, uniquely challenging business climate, we’ll continue to grow organically, in terms of our people, our technology offering and the global markets which we support - while upholding the service and support that we’re renowned for. But we’re now part of a wider group of companies, with access to a considerably enlarged portfolio of products and services that complement our own seabed-to-shore systems. We expect this to deliver significant operational benefits for our customers across the global energy, ocean science, civil and defence markets.”

“Next year will be Sonardyne’s 50th year in business and I’m proud to have played a significant role in the success of the company over the last two decades,” says John. “As we look forward to celebrating that half century milestone with Graham at the helm, our collective sights are focussed on the direction we’re headed in at the start of our second half century. As CEO of Sonardyne Group, I’m excited at the prospect of working with Graham and his counterparts across our business to support those who measure, navigate, communicate or explore the world’s waters and oceans, safely, responsibly and more efficiently than ever before.”

Advertisement
Leonardo animated rectangle

Graham is an Electromechanical Engineer by background with a first-class degree and Ph.D. He is also a Chartered Engineer, a Fellow of the Institute of Directors (IoD), a Fellow of the Institute of Marine Engineering Science and Technology (IMarEST), and a member of the Society for Underwater Technology (SUT). He contributes to a number of industry groups such as the Southern Region Council of the Energy Industries Council (EIC).

 

Advertisement
Tritax leaderboard 728x90 Tritax leaderboard 728x90
PLEXSYS and OneArc formalise partnership

Defence

PLEXSYS and OneArc formalise partnership

2 December 2025

PLEXSYS has signed a strategic Memorandum of Understanding (MoU) with BAE Systems OneArc on the opening day of I/ITSEC 2025 in Orlando, Florida.

BAE Systems reaches training milestone

Defence

BAE Systems reaches training milestone

2 December 2025

As BAE Systems announces that applications for its 2026 apprenticeship intake are open, the company has reached a record achievement with more than 6,800 young people in training across its UK operations.

Digital Catapult advances accelerator programme

Defence

Digital Catapult advances accelerator programme

2 December 2025

Digital Catapult has named five startups that will join its accelerator programme to improve industrial supply chain resilience in the defence industry and drive the practical application of deep tech innovation to equip the sector to be future ready.

Jim Carter appointed Director General C&I by NAD Group

Defence

Jim Carter appointed Director General C&I by NAD Group

2 December 2025

The National Armaments Director (NAD) Group has appointed Jim Carter as permanent Director General for Commercial and Industry (C&I) following an external competition.

Advertisement
ODU RT
Anotec achieves JOSCAR accreditation

Aerospace Defence

Anotec achieves JOSCAR accreditation

2 December 2025

Advanced surface coating specialist Anotec has strengthened its compliance across aerospace and defence, by achieving JOSCAR accreditation.

Lane Electronics introduces Cinch Fibreco Mil-Spec D38999 connectors

Defence Security

Lane Electronics introduces Cinch Fibreco Mil-Spec D38999 connectors

1 December 2025

Lane Electronics has introduced Cinch Fibreco generic D38999 (MIL-DTL-38999 series III) Fibre-Optic Connectors are now available from Lane Electronics

Advertisement
Leonardo animated rectangle